00521 a2200193 4500 30117 30117 WUSLLib 170824b xxu||||| |||| 00| 0 eng d 8170294827 English 004.69 REN Rennie, Cindy 7165 CC:Mail plain & simple New Delhi BPB 1994 1994 xviii,278p. 24cm Computer communications 7166 Computer science 7167 Interfacing and communications 5144 SR ddc 0 0 0 0 SRC MAIN MAIN REF 2008-07-14 0 004.69REN 4094 2017-08-24 00:00:00 0.00 2016-10-31 SR